Google no longer ranks websites based on content alone. Speed, responsiveness, and visual stability now play a major role—thanks to Google Core Web Vitals.
The good news?
If your website is built on HubSpot CMS, you already have a strong technical foundation. The better news? With the right optimizations, HubSpot CMS pages can easily pass Core Web Vitals and outperform competitors.
In this guide, we’ll show you how to optimize HubSpot CMS pages for Google Core Web Vitals—without sacrificing design or functionality.
Google measures real user experience using three metrics:
Largest Contentful Paint (LCP) – How fast the main content loads
Interaction to Next Paint (INP) – How quickly users can interact
Cumulative Layout Shift (CLS) – How stable the page layout is
Passing these metrics improves:
Search rankings
Bounce rates
Conversions
LCP is usually affected by hero images, banners, or headings.
Use compressed images (WebP preferred)
Avoid oversized hero images
Reduce custom fonts and heavy CSS
Load critical content above the fold first
✅ HubSpot CMS already uses a global CDN—make sure your images are optimized to take full advantage.
INP measures how fast your page reacts when users click, scroll, or type.
Too many third-party scripts
Heavy custom JavaScript
Overloaded animations
Remove unused scripts
Load non-essential scripts asynchronously
Use lightweight custom modules instead of bloated ones
💡 Less JavaScript = faster interactions.
CLS is one of the most common Core Web Vitals issues on HubSpot CMS websites.
Images without fixed dimensions
Fonts loading late
Dynamic banners or popups
Always define image width & height
Reserve space for CTAs and forms
Avoid injecting content above existing elements
Stable layouts = better UX and higher trust.
Google evaluates mobile performance first.
HubSpot CMS supports:
Responsive modules
Mobile previews
Flexible grid systems
Avoid large mobile hero sections
Keep mobile CTAs visible and simple
Reduce mobile animations
Mobile optimization directly impacts LCP, CLS, and INP.
Poorly built themes and modules can silently destroy performance.
Use clean, reusable modules
Avoid nesting too many modules
Optimize CSS globally instead of per module
Remove unused theme styles
At HubStack Solutions, we build performance-focused HubSpot CMS themes designed to pass Core Web Vitals.
Optimization isn’t a one-time task.
Google PageSpeed Insights
Google Search Console
HubSpot CMS analytics
Track:
Pages failing Core Web Vitals
Mobile vs desktop performance
Real-user metrics over time
As a HubSpot Solutions Partner, HubStack Solutions helps businesses:
Fix Core Web Vitals issues
Optimize HubSpot CMS performance
Improve SEO rankings and conversions
Build fast, scalable, and Google-friendly websites
We focus on real performance, not just good-looking scores.